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Complementary Medicine

B12 Prescription



I am taking B 12 injections 2000 mcg twice weekly. I have periods of not being able to stay awake during the day and insomnia at night. As a nurse, I have never given this much B 12 to a patient and am wondering if the dosage is causing my symptoms.


I doubt if it is hurting or helping. It may be better to find out what is wrong with you so your doctor can do the correct thing.

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Response by:

Glen F Aukerman, MD, DABFP Glen F Aukerman, MD, DABFP
Professor of Family Medicine
College of Medicine
The Ohio State University